pcsx2/common/include/Utilities/pxEvents.h

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/* PCSX2 - PS2 Emulator for PCs
* Copyright (C) 2002-2010 PCSX2 Dev Team
*
* PCSX2 is free software: you can redistribute it and/or modify it under the terms
* of the GNU Lesser General Public License as published by the Free Software Found-
* ation, either version 3 of the License, or (at your option) any later version.
*
* PCSX2 is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
* PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with PCSX2.
* If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
BEGIN_DECLARE_EVENT_TYPES()
DECLARE_EVENT_TYPE( pxEvt_StartIdleEventTimer, -1 )
DECLARE_EVENT_TYPE( pxEvt_DeleteObject, -1 )
DECLARE_EVENT_TYPE( pxEvt_DeleteThread, -1 )
DECLARE_EVENT_TYPE( pxEvt_InvokeAction, -1 )
DECLARE_EVENT_TYPE( pxEvt_SynchronousCommand, -1 )
END_DECLARE_EVENT_TYPES()
typedef void FnType_Void();
// --------------------------------------------------------------------------------------
// SynchronousActionState
// --------------------------------------------------------------------------------------
class SynchronousActionState
{
DeclareNoncopyableObject( SynchronousActionState );
protected:
bool m_posted;
Threading::Semaphore m_sema;
ScopedExcept m_exception;
public:
sptr return_value;
SynchronousActionState()
{
m_posted = false;
return_value = 0;
}
virtual ~SynchronousActionState() throw() {}
void SetException( const BaseException& ex );
void SetException( BaseException* ex );
Threading::Semaphore& GetSemaphore() { return m_sema; }
const Threading::Semaphore& GetSemaphore() const { return m_sema; }
void RethrowException() const;
int WaitForResult();
int WaitForResult_NoExceptions();
void PostResult( int res );
void ClearResult();
void PostResult();
};
// --------------------------------------------------------------------------------------
// pxSimpleEvent - non-abstract implementation of wxEvent
// --------------------------------------------------------------------------------------
// Why? I mean, why is wxEvent abstract? Over-designed OO is such a bad habit. And while
// I'm on my high horse (and it's so very high!), why use 'private'? Ever? Seriously, it
// sucks. Stop using it, people.
//
class pxSimpleEvent : public wxEvent
{
DECLARE_DYNAMIC_CLASS_NO_ASSIGN(pxSimpleEvent)
public:
explicit pxSimpleEvent( int evtid=0 )
: wxEvent(0, evtid)
{ }
pxSimpleEvent( wxWindowID winId, int evtid )
: wxEvent(winId, evtid)
{ }
virtual wxEvent *Clone() const { return new pxSimpleEvent(*this); }
};
// --------------------------------------------------------------------------------------
// pxActionEvent
// --------------------------------------------------------------------------------------
class pxActionEvent : public wxEvent
{
DECLARE_DYNAMIC_CLASS_NO_ASSIGN(pxActionEvent)
protected:
SynchronousActionState* m_state;
public:
virtual ~pxActionEvent() throw() { }
virtual pxActionEvent *Clone() const { return new pxActionEvent(*this); }
explicit pxActionEvent( SynchronousActionState* sema=NULL, int msgtype=pxEvt_InvokeAction );
explicit pxActionEvent( SynchronousActionState& sema, int msgtype=pxEvt_InvokeAction );
pxActionEvent( const pxActionEvent& src );
Threading::Semaphore* GetSemaphore() const { return m_state ? &m_state->GetSemaphore() : NULL; }
const SynchronousActionState* GetSyncState() const { return m_state; }
SynchronousActionState* GetSyncState() { return m_state; }
void SetSyncState( SynchronousActionState* obj ) { m_state = obj; }
void SetSyncState( SynchronousActionState& obj ) { m_state = &obj; }
virtual void SetException( BaseException* ex );
void SetException( const BaseException& ex );
virtual void _DoInvokeEvent();
protected:
// Extending classes should implement this method to perfoem whatever action it is
// the event is supposed to do. :) Thread affinity is garaunteed to be the Main/UI
// thread, and exceptions will be handled automatically.
//
// Exception note: exceptions are passed back to the thread that posted the event
// to the queue, when possible. If the calling thread is not blocking for a result
// from this event, then the exception will be posted to the Main/UI thread instead.
virtual void InvokeEvent() {}
};
// --------------------------------------------------------------------------------------
// pxExceptionEvent
// --------------------------------------------------------------------------------------
class pxExceptionEvent : public pxActionEvent
{
typedef pxActionEvent _parent;
protected:
BaseException* m_except;
public:
pxExceptionEvent( BaseException* ex=NULL )
{
m_except = ex;
}
pxExceptionEvent( const BaseException& ex );
virtual ~pxExceptionEvent() throw()
{
}
virtual pxExceptionEvent *Clone() const { return new pxExceptionEvent(*this); }
protected:
void InvokeEvent();
};
// --------------------------------------------------------------------------------------
// pxSynchronousCommandEvent
// --------------------------------------------------------------------------------------
class pxSynchronousCommandEvent : public wxCommandEvent
{
DECLARE_DYNAMIC_CLASS_NO_ASSIGN(pxSynchronousCommandEvent)
protected:
SynchronousActionState* m_sync;
wxEventType m_realEvent;
public:
virtual ~pxSynchronousCommandEvent() throw() { }
virtual pxSynchronousCommandEvent *Clone() const { return new pxSynchronousCommandEvent(*this); }
pxSynchronousCommandEvent(SynchronousActionState* sema=NULL, wxEventType commandType = wxEVT_NULL, int winid = 0);
pxSynchronousCommandEvent(SynchronousActionState& sema, wxEventType commandType = wxEVT_NULL, int winid = 0);
pxSynchronousCommandEvent(SynchronousActionState* sema, const wxCommandEvent& evt);
pxSynchronousCommandEvent(SynchronousActionState& sema, const wxCommandEvent& evt);
pxSynchronousCommandEvent(const pxSynchronousCommandEvent& src);
Threading::Semaphore* GetSemaphore() { return m_sync ? &m_sync->GetSemaphore() : NULL; }
wxEventType GetRealEventType() const { return m_realEvent; }
void SetException( BaseException* ex );
void SetException( const BaseException& ex );
};
// --------------------------------------------------------------------------------------
// BaseMessageBoxEvent
// --------------------------------------------------------------------------------------
class BaseMessageBoxEvent : public pxActionEvent
{
typedef pxActionEvent _parent;
DECLARE_DYNAMIC_CLASS_NO_ASSIGN(BaseMessageBoxEvent)
protected:
wxString m_Content;
public:
virtual ~BaseMessageBoxEvent() throw() { }
virtual BaseMessageBoxEvent *Clone() const { return new BaseMessageBoxEvent(*this); }
explicit BaseMessageBoxEvent( const wxString& content=wxEmptyString, SynchronousActionState* instdata=NULL );
BaseMessageBoxEvent( const wxString& content, SynchronousActionState& instdata );
BaseMessageBoxEvent( const BaseMessageBoxEvent& event );
protected:
virtual void InvokeEvent();
virtual int _DoDialog() const;
};
// --------------------------------------------------------------------------------------
// MsgButtons
// --------------------------------------------------------------------------------------
class MsgButtons
{
protected:
BITFIELD32()
bool
m_OK :1,
m_Cancel :1,
m_Yes :1,
m_No :1,
m_AllowToAll:1,
m_Apply :1,
m_Abort :1,
m_Retry :1,
m_Ignore :1,
m_Reset :1,
m_Close :1;
BITFIELD_END
wxString m_CustomLabel;
public:
MsgButtons() { bitset = 0; }
MsgButtons& OK() { m_OK = true; return *this; }
MsgButtons& Cancel() { m_Cancel = true; return *this; }
MsgButtons& Apply() { m_Apply = true; return *this; }
MsgButtons& Yes() { m_Yes = true; return *this; }
MsgButtons& No() { m_No = true; return *this; }
MsgButtons& ToAll() { m_AllowToAll = true; return *this; }
MsgButtons& Abort() { m_Abort = true; return *this; }
MsgButtons& Retry() { m_Retry = true; return *this; }
MsgButtons& Ignore() { m_Ignore = true; return *this; }
MsgButtons& Reset() { m_Reset = true; return *this; }
MsgButtons& Close() { m_Close = true; return *this; }
MsgButtons& Custom( const wxString& label)
{
m_CustomLabel = label;
return *this;
}
MsgButtons& OKCancel() { m_OK = m_Cancel = true; return *this; }
MsgButtons& YesNo() { m_Yes = m_No = true; return *this; }
bool HasOK() const { return m_OK; }
bool HasCancel() const { return m_Cancel; }
bool HasApply() const { return m_Apply; }
bool HasYes() const { return m_Yes; }
bool HasNo() const { return m_No; }
bool AllowsToAll() const{ return m_AllowToAll; }
bool HasAbort() const { return m_Abort; }
bool HasRetry() const { return m_Retry; }
bool HasIgnore() const { return m_Ignore; }
bool HasReset() const { return m_Reset; }
bool HasClose() const { return m_Close; }
bool HasCustom() const { return !m_CustomLabel.IsEmpty(); }
const wxString& GetCustomLabel() const { return m_CustomLabel; }
bool Allows( wxWindowID id ) const;
void SetBestFocus( wxWindow* dialog ) const;
void SetBestFocus( wxWindow& dialog ) const;
bool operator ==( const MsgButtons& right ) const
{
return OpEqu( bitset );
}
bool operator !=( const MsgButtons& right ) const
{
return !OpEqu( bitset );
}
};
// --------------------------------------------------------------------------------------
// pxMessageBoxEvent
// --------------------------------------------------------------------------------------
// This event type is used to transfer message boxes to the main UI thread, and return the
// result of the box. It's the only way a message box can be issued from non-main threads
// with complete safety in wx2.8.
//
// For simplicity sake this message box only supports two basic designs. The main design
// is a generic message box with confirmation buttons of your choosing. Additionally you
// can specify a "scrollableContent" text string, which is added into a read-only richtext
// control similar to the console logs and such.
//
// Future consideration: If wxWidgets 3.0 has improved thread safety, then it should probably
// be reasonable for it to work with a more flexable model where the dialog can be created
// on a child thread, passed to the main thread, where ShowModal() is run (keeping the nested
// message pumps on the main thread where they belong). But so far this is not possible,
// because of various subtle issues in wx2.8 design.
//
class pxMessageBoxEvent : public BaseMessageBoxEvent
{
typedef BaseMessageBoxEvent _parent;
DECLARE_DYNAMIC_CLASS_NO_ASSIGN(pxMessageBoxEvent)
protected:
wxString m_Title;
MsgButtons m_Buttons;
public:
virtual ~pxMessageBoxEvent() throw() { }
virtual pxMessageBoxEvent *Clone() const { return new pxMessageBoxEvent(*this); }
pxMessageBoxEvent() {}
pxMessageBoxEvent( const wxString& title, const wxString& content, const MsgButtons& buttons, SynchronousActionState& instdata );
pxMessageBoxEvent( const wxString& title, const wxString& content, const MsgButtons& buttons, SynchronousActionState* instdata=NULL );
pxMessageBoxEvent( const pxMessageBoxEvent& event );
protected:
int _DoDialog() const;
};
// --------------------------------------------------------------------------------------
// pxAssertionEvent
// --------------------------------------------------------------------------------------
class pxAssertionEvent : public BaseMessageBoxEvent
{
typedef BaseMessageBoxEvent _parent;
DECLARE_DYNAMIC_CLASS_NO_ASSIGN( pxAssertionEvent )
protected:
wxString m_Stacktrace;
public:
virtual ~pxAssertionEvent() throw() { }
virtual pxAssertionEvent *Clone() const { return new pxAssertionEvent(*this); }
pxAssertionEvent( const wxString& content=wxEmptyString, const wxString& trace=wxEmptyString, SynchronousActionState* instdata=NULL );
pxAssertionEvent( const wxString& content, const wxString& trace, SynchronousActionState& instdata );
pxAssertionEvent( const pxAssertionEvent& event );
pxAssertionEvent& SetStacktrace( const wxString& trace );
protected:
int _DoDialog() const;
};
typedef void (wxEvtHandler::*pxSyncronousEventFunction)(pxSynchronousCommandEvent&);
#define pxSynchronousEventHandler(func) \
(wxObjectEventFunction)(wxEventFunction)wxStaticCastEvent(pxSyncronousEventFunction, &func )